I saw Diesel at the Union 76 listed for $4.99 a gal.
there is quite a bit of tax on Diesel fuel. correct me if Iam wrong here, but I seem to have read that back in the Clinton administration. Mr. Al Gore, the inventor of the internet

, and probably the inventor of Global Warming.
They started taxing the different fuels on the energy content of ea one. Diesel has something like 12 - 15% more energy than Gasoline (BTU).
I don`t know how much the tax is, but look at off road Diesel compared to Hwy Diesel in price. even off road still has taxes in the price.
Charlie ☺